IAIN Henderson believes Ireland can snuff out the threat of Finn Russell if they cut out their defensive errors.
There were 24 missed tackles attributed to Ireland in their last game against Italy and that led to serious fissures in Ireland's rearguard, and it took a massive effort to contain the damage to two tries conceded.
Russell, Racing 92's mercurial out-half, will punish a similar display, warns Henderson, but the Ulster skipper says that the flipside of that is that a solid defensive effort will work in Ireland's favour in Murrayfield.